package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.DishFlavor;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishFlavorMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.CategoryService;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.security.auth.DestroyFailedException;
import java.lang.annotation.Target;
import java.util.ArrayList;
import java.util.List;
@Slf4j
@Service
public class DishServiceImpl implements DishService {
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private DishFlavorMapper dishFlavorMapper;
    @Autowired
    private SetmealMapper setmealMapper;
    /**
     * 插入菜品
     * @param dishDTO
     */
    @Override
    public void insert(DishDTO dishDTO) {
        Dish dish = new Dish();
        BeanUtils.copyProperties(dishDTO,dish);
        dish.setStatus(StatusConstant.ENABLE);
        dishMapper.insert(dish);
        Long id = dish.getId();
        List<DishFlavor> flavors = dishDTO.getFlavors();
        if (flavors.size()>0)
        flavors.forEach(f->f.setDishId(id));
        dishFlavorMapper.insert(flavors);
    }
    /**
     * 菜品分类
     * @param dto
     * @return
     */
    @Override
    public PageResult page(DishPageQueryDTO dto) {
        PageHelper.startPage(dto.getPage(),dto.getPageSize());
        Page<DishVO> page = dishMapper.page(dto);
        long total = page.getTotal();
        List<DishVO> result = page.getResult();
        return new PageResult(total,result);
    }
    /**
     * 批量删除菜品接口
     * @param ids
     */
    @Override
    public void deleteByIds(Long[] ids) {
        for (Long id : ids) {
           Dish dish =  dishMapper.getById(id);
           if (dish.getStatus() == 1){
               throw new DeletionNotAllowedException(MessageConstant.DISH_ON_SALE);
           }
        }
        List<Long> setmealIds= setmealMapper.getDishById(ids);
        if (setmealIds.size()>0){
            throw new DeletionNotAllowedException(MessageConstant.DISH_BE_RELATED_BY_SETMEAL);
        }
            for (Long id : ids) {
                dishMapper.deleteById(id);
                dishFlavorMapper.deleteById(id);

        }
    }
    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @Override
    public DishVO getById(Long id) {
        Dish byId = dishMapper.getById(id);
        DishVO dishVO = new DishVO();
        BeanUtils.copyProperties(byId,dishVO);
        dishVO.setFlavors(dishFlavorMapper.getById(id));
        return dishVO;
    }

    @Override
    @Transactional
    public void update(DishDTO dishDTO) {
        Dish dish = new Dish();
        BeanUtils.copyProperties(dishDTO,dish);
        dishMapper.update(dish);
        Long id = dish.getId();
        List<DishFlavor> flavors = dishDTO.getFlavors();
        dishFlavorMapper.deleteById(id);
        if (flavors.size()>0){
            flavors.forEach(f->f.setDishId(id));
            dishFlavorMapper.insert(flavors);
        }

    }

    @Override
    public List<DishDTO> getByIds(Long categoryId) {
        List<DishDTO> byIds = dishMapper.getByIds(categoryId);
        return byIds;
    }

    @Override
    public void openOrClose(Integer status, Long id) {
        Dish dish = Dish.builder()
                .id(id)
                .status(status)
                .build();
        dishMapper.update(dish);
    }
    /**
     * 条件查询菜品和口味
     * @param dish
     * @return
     */
    public List<DishVO> listWithFlavor(Dish dish) {

        List<Dish> dishList = dishMapper.list(dish);

        List<DishVO> dishVOList = new ArrayList<>();

        for (Dish d : dishList) {
            DishVO dishVO = new DishVO();
            BeanUtils.copyProperties(d,dishVO);

            //根据菜品id查询对应的口味
            List<DishFlavor> flavors = dishFlavorMapper.getById(d.getId());

            dishVO.setFlavors(flavors);
            dishVOList.add(dishVO);
        }

        return dishVOList;
    }
}
